Pith Number

pith:SW7IUF6N

pith:2014:SW7IUF6NW5X67NX3KDQIUJNQKG

not attested not anchored not stored refs pending

Annihilation of cohomology and decompositions of derived categories

Ryo Takahashi, Srikanth B. Iyengar

arxiv:1405.5299 v2 · 2014-05-21 · math.RT · math.AC · math.CT · math.RA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SW7IUF6NW5X67NX3KDQIUJNQKG}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T02:44:42.055039Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

95be8a17cdb76fefb6fb50e08a25b051ab33ac138bdb93c66dc6c378cd9ec55e

Aliases

arxiv: 1405.5299 · arxiv_version: 1405.5299v2 · doi: 10.48550/arxiv.1405.5299 · pith_short_12: SW7IUF6NW5X6 · pith_short_16: SW7IUF6NW5X67NX3 · pith_short_8: SW7IUF6N

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/SW7IUF6NW5X67NX3KDQIUJNQKG \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 95be8a17cdb76fefb6fb50e08a25b051ab33ac138bdb93c66dc6c378cd9ec55e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e3fb01933fdac3047252d31033e78f65f66350720c8e4bfdc8b9b5c958391eab",
    "cross_cats_sorted": [
      "math.AC",
      "math.CT",
      "math.RA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RT",
    "submitted_at": "2014-05-21T05:07:03Z",
    "title_canon_sha256": "c06eba5691dae551d7cdcf73b3544fca0672d9645e6455910d4c81d4994ca14d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.5299",
    "kind": "arxiv",
    "version": 2
  }
}